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          January 20, 2020 
          
            <span class="tags"><a href="/blog/tag/extension">#extension</a><a href="/blog/tag/sentry">#sentry</a><a href="/blog/tag/tracing">#tracing</a></span>
          
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        <h1 class="post-title">Sentry Error Tracker - A guardian of your Quarkus application</h1>
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              <img class="headshot" src="https://www.gravatar.com/avatar/444d54a22db43a0a622180b1ca11dedb">
            
            <p class="byline">By Andy Damevin</p>
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          <div class="width-12-12">
              <div class="paragraph">
<p>If like me you have met Quarkus and fell in love, you started implementing your backend and you started to feel so light and quick, click clack, whoot whoot&#8230;&#8203; in a woosh, your lightning fast native container is ready to be sent on your brand new Kubernetes cluster 🤙</p>
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<div class="paragraph">
<p>This is awesome!!</p>
</div>
<div class="paragraph">
<p>Mmmeahh you may have forgotten a detail&#8230;&#8203; have you thought about the fate of your first production exception (please be honest with me :-)?</p>
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<div class="olist upperalpha">
<ol class="upperalpha" type="A">
<li>
<p>As a backend god, master of the world, first of his name, you implemented some Logstash process to extract your log files, send them to some Elasticsearch server somewhere and&#8230;&#8203; sorry to say it, but you just spend more time configuring it than actually coding your app 😅.</p>
</li>
<li>
<p>You thought you could manually check the error logs a few times a week and &#8230;&#8203; oops, unlucky you, your application broke exactly the day you forgot to check, let&#8217;s hope no one else noticed 🤭?</p>
</li>
<li>
<p>You were waiting for this article 🤓</p>
</li>
</ol>
</div>
<div class="paragraph">
<p>Now that you are teased, aren&#8217;t you? Let&#8217;s dive in.</p>
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<div class="sect1">
<h2 id="sentry-the-guardian-has-arrived-on-quarkus"><a class="anchor" href="#sentry-the-guardian-has-arrived-on-quarkus"></a>Sentry, the guardian has arrived on Quarkus</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Once your code is reviewed, tested in many ways, containerized, &#8230;&#8203;, and finally promoted to production, <span class="line-through">I guess you can expect it to run smoothly ever after..</span> an exception is going to pop, it&#8217;s just a question of time. The questions are:</p>
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<div class="olist arabic">
<ol class="arabic">
<li>
<p>How will you get notified about this error?</p>
</li>
<li>
<p>What are you going to do about it?</p>
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</ol>
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<div class="paragraph">
<p>Well, this looks like a complex problem right? This is what I really like about using Quarkus and Sentry together, you will be all set in a few minutes:</p>
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<div class="ulist">
<ul>
<li>
<p>Create a <a href="https://sentry.io/signup/">Sentry account</a>, you can choose a free plan or another depending on your project needs (or with a bit more time, even a <a href="https://docs.sentry.io/server/">self hosted sentry</a>)</p>
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<i class="fa icon-warning" title="Warning"></i>
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Sentry has recently <a href="https://blog.sentry.io/2019/11/06/relicensing-sentry">re-licensed most of its code to BSL</a> - which is not an OSI-approved license. The Java SDK is still under the 3-Clause BSD license.
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</li>
<li>
<p>Configure Sentry on your Quarkus application</p>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>Add the extension:</p>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code data-lang="shell" class="language-shell hljs">$ ./mvnw quarkus:add-extension -Dextensions=sentry</code></pre>
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<li>
<p>Set it up:</p>
<div class="listingblock">
<div class="content">
<pre class="highlightjs highlight"><code data-lang="properties" class="language-properties hljs">quarkus.log.sentry=true
quarkus.log.sentry.dsn=[your Sentry DSN]
quarkus.log.sentry.in-app-packages=org.acme</code></pre>
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More details about the configuration can be found in the <a href="https://quarkus.io/guides/logging-sentry">Logging with Sentry guide</a>
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</tr>
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</li>
</ol>
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</ul>
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<div class="sect1">
<h2 id="happily-ever-after"><a class="anchor" href="#happily-ever-after"></a>Happily ever after</h2>
<div class="sectionbody">
<div class="paragraph">
<p>You are now pretty confident that in the very unlikely event of an error in your fully tested code, your guardian will be watching..</p>
</div>
<div class="paragraph">
<p>Bip bip, you&#8217;ve got mail.. ewww snap an error 🥳 (and you are happy that you haven&#8217;t missed it)</p>
</div>
<div class="imageblock">
<div class="content">
<img src="/assets/images/posts/quarkus-sentry/sentry-email.png" alt="Sentry Email Notification" width="900">
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<div class="paragraph">
<p>You now enter the really pretty Sentry application. It is also smart enough to group similar events into issues (or you can also decide to group them yourself).</p>
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<div class="imageblock">
<div class="content">
<img src="/assets/images/posts/quarkus-sentry/sentry-issues.png" alt="Sentry Issue List" width="900">
</div>
</div>
<div class="paragraph">
<p>It&#8217;s now time to generate and link an issue on your favorite tracker (GitHub, Bitbucket, GitLab, &#8230;&#8203;). It will contain a lot of contextual information about the errors (endpoint, params, stacktrace, environment, &#8230;&#8203;) to help your team fix that nasty bug.</p>
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<div class="imageblock">
<div class="content">
<img src="/assets/images/posts/quarkus-sentry/sentry-issue.png" alt="Sentry issue details" width="900">
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<div class="paragraph">
<p>If you want to go a bit further you can start cooking some custom rules to dispatch alerts with your own taste.</p>
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<div class="imageblock">
<div class="content">
<img src="/assets/images/posts/quarkus-sentry/sentry-alerts-config.png" alt="Sentry Alerts Configuration" width="900">
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</div>
<div class="paragraph">
<p>Bonus point, Sentry is also available for your <a href="https://sentry.io/for/javascript/">frontend</a>.</p>
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<div class="paragraph">
<p>Good luck 🤙</p>
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<div class="admonitionblock note">
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<i class="fa icon-note" title="Note"></i>
</td>
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Once an extension is integrated in the Quarkus eco-system, the life of thousand of developers is made easier. If you know of a similar (or any) tool you think could help the Quarkus community, <a href="https://github.com/quarkusio/quarkus/issues/new?assignees=&amp;labels=extension-proposal&amp;template=extension_proposal.md&amp;title=">propose it</a>!
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